[PATCH v6 0/2] Enable PMD power management on Arm

[David Marchand]

On Mon, Feb 20, 2023 at 9:51 AM Feifei Wang <feifei.wang2 at arm.com> wrote:
>
> For Arm aarch, use WFE instructions to enable PMD power management.
>
> Test Results:
> dynamic instructions over 1sec  without wfe     with wfe        percentage
> ampere-altra                    6,298,483,712   9,117,624       -99.855%
> thunderx2                       6,990,909,373   3,247,226       -99.954%
>
> When power efficient PMD is enabled by using WFE on Arm, if no pkts
> received, the instructions that CPU executes is reduced by 99%.
>
> Feifei Wang (2):
>   eal: add 8 bits case for wait scheme
>   eal: add power mgmt support on Arm
>
>  doc/guides/rel_notes/release_23_03.rst |  4 ++
>  lib/eal/arm/include/rte_pause_64.h     | 32 +++++++++++++--
>  lib/eal/arm/rte_cpuflags.c             |  5 +++
>  lib/eal/arm/rte_power_intrinsics.c     | 55 ++++++++++++++++++++++++--
>  4 files changed, 89 insertions(+), 7 deletions(-)

Fixed release notes, squashed patches and applied, thanks.


-- 
David Marchand